body {
    font-family: 'Noto Serif SC', serif;
    background-color: #b8a385;
    background-size: cover;
    background-attachment: fixed;
    color: #554124;
    padding-top: 56px; /* 标准导航栏高度 */
}
@media (max-width: 991.98px) {
    body {
        padding-top: 72px;
    }
}

/* 调整聊天容器上边距 */
.chat-container {
    margin-top: 20px; /* 增加额外间距 */
}
.nav-bg {
    background-color: rgba(85, 65, 36, 0.8);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.navbar-brand {
    transition: color 0.3s ease;
}

.navbar-brand:hover {
    color: #f0e6d2;
}

.chat-container {
    background-color: rgba(255, 246, 233, 0.9);
    border: 2px solid #554124;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(85, 65, 36, 0.5), 0 0 20px rgba(85, 65, 36, 0.2) inset;
    padding: 20px;
}

.user-msg {
    background-color: rgba(235, 221, 199, 0.8);
    border: 1px solid #b8a385;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.user-msg:hover {
    transform: scale(1.02);
}

.service-msg {
    background-color: rgba(209, 190, 158, 0.8);
    border: 1px solid #967f5d;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.service-msg:hover {
    transform: scale(1.02);
}

.footer-bg {
    background-color: rgba(85, 65, 36, 0.8);
    box-shadow: 0 -2px 4px rgba(0, 0, 0, 0.2);
}

.input-group .btn {
    background-color: rgba(85, 65, 36, 0.8);
    color: #f0e6d2;
    border: none;
    transition: background-color 0.3s ease;
}

.input-group .btn:hover {
    background-color: rgba(128, 98, 54, 0.8);
}
.footer-title {
    color: #D4B16A;
    position: relative;
    padding-bottom: 10px;
    margin-bottom: 15px;
}

.footer-title::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: #9A1F1A;
}